Circuit/System Verification
IMPORTANT:
When using this diagnostic, more than one vehicle key is required to ensure proper diagnosis. If more than one key is not available at the time of service, contact the customer and ask if any other keys can be provided for service. If unavailable, a new second key can be created.
- Verify that DTC B3055 or DTC B3060 is not set as a current DTC.
- If DTC B3055 or DTC B3060 is set, proceed with those diagnostic prior to performing the diagnostics for DTC B3967. Refer to Diagnostic Trouble Code (DTC) List - Vehicle .
- While viewing DTCs with a scan tool, attempt to start the vehicle using all of the available keys. The vehicle should start with all available keys.
- If only one key results in inoperative starting and DTC B3976 is set as current, replace the suspect key.
- If all available keys result in inoperative starting and DTC B3976 is set as current, replace the TDM.